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. 2021 Apr 28;69(3):239–248. doi: 10.1007/s12026-021-09197-1

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© The Author(s) 2021, corrected publication 2021

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Fig. 5 — Association of anti-fibrillarin antibodies and indirect immunofluorescence (IIF). a Representative clumpy nucleolar staining pattern by IIF on HEp-2 cells which corresponds to international consensus on ANA patterns (ICAP) AC-9. b Anti-fibrillarin antibody levels on the particle-based multi-analyte technology (PMAT) assay expressed in median fluorescent intensity (MFI) units compared to titer of indirect immunofluorescence (IIF) on HEp-2 cells with AC-9 clumpy nucleolar pattern. c Spearman’s analysis of anti-fibrillarin antibody levels on PMAT compared to IIF titer showed a trend of correlation but not significant (p = 0.0597)